A Study of the Flexural Behavior of Fiber-Reinforced Concretes Exposed to Moderate Temperatures
comunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
A Study of the Flexural Behavior of Fiber-Reinforced Concretes Exposed to Moderate TemperaturesFecha de publicación
2021-06-24Editor
Multidisciplinary Digital Publishing InstituteISSN
1996-1944Cita bibliográfica
Caballero-Jorna, M.; Roig-Flores, M.; Serna, P. A Study of the Flexural Behavior of Fiber-Reinforced Concretes Exposed to Moderate Temperatures. Materials 2021, 14, 3522. https://doi.org/10.3390/ma14133522Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.mdpi.com/1996-1944/14/13/3522#citeVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The use of synthetic fibers in fiber-reinforced concretes (FRCs) is often avoided due to the
mistrust of lower performance at changing temperatures. This work examines the effect of moderate
temperatures on the ... [+]
The use of synthetic fibers in fiber-reinforced concretes (FRCs) is often avoided due to the
mistrust of lower performance at changing temperatures. This work examines the effect of moderate
temperatures on the flexural strengths of FRCs. Two types of polypropylene fibers were tested, and
one steel fiber was employed as a reference. Three-point bending tests were carried out following
an adapted methodology based on the standard EN 14651. This adapted procedure included an
insulation system that allowed the assessment of FRC flexural behavior after being exposed for two
months at temperatures of 5, 20, 35 and 50 C. In addition, the interaction of temperature with a
pre-cracked state was also analyzed. To do this, several specimens were pre-cracked to 0.5 mm after
28 days and conditioned in their respective temperature until testing. The findings suggest that this
range of moderate temperatures did not degrade the behavior of FRCs to a great extent since the
analysis of variances showed that temperature is not always a significant factor; however, it did have
an influence on the pre-cracked specimens at 35 and 50 C. [-]
Publicado en
Materials, 14 (2021)Entidad financiadora
Ministerio de Ciencia, Innovación y Universidades de España.
Código del proyecto o subvención
FPU18/06145
Derechos de acceso
info:eu-repo/semantics/openAccess
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